Xiaoming English class with the teacher,said:"May I go to the toilet?" The teacher said:"Go ahead." Xiaoming sit down.After a while,Xiao-Ming Yougen teacher,said:"May I go to the toilet?" The teacher said:"Go ahead." Xiaoming and sat down.He next to the students ask:"Do you not like a teacher talking about it to the toilet?How not?" Little said:"You heard the teacher say,'go to your head' ah!"